bharat-id-generator/index.js

A timestamp based sequencer id generator

import { customAlphabet } from "nanoid";

//numeric only random gen
const nanoidDigits = customAlphabet('0123456789', 6);

const generateUID = (prefix = "") => {
  // const now = new Date();
  // const dd = String(now.getDate()).padStart(2, '0');
  // const mm = String(now.getMonth() + 1).padStart(2, '0');
  // const yyyy = now.getFullYear();
  // const hh = String(now.getHours()).padStart(2, '0');
  // const min = String(now.getMinutes()).padStart(2, '0');
  // const ss = String(now.getSeconds()).padStart(2, '0');

  const timestamp = new Date().toISOString().replace(/\D/g, '').slice(2, 14);
  // const timestamp = `${dd}${mm}${yyyy}${hh}${min}${ss}`; // ddmmyyyyhhmmss
  const randomPart = nanoidDigits(); // 6-digit unique number
  return `${prefix}-${timestamp}-${randomPart}`;
}

export default generateUID;